Communication service priority in smart substation and its queue scheduling method

Jun’e LI; Qiuyu LU; Jian LIU; Kai YUAN; Wei TIAN; Bijun PENG

doi:10.11959/j.issn.1000-436x.2021107

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Communication service priority in smart substation and its queue scheduling method

Papers | 更新时间：2024-06-05

- Communication service priority in smart substation and its queue scheduling method
- Journal on Communications Vol. 42, Issue 7, Pages: 25-40(2021)
- 作者机构：
  
  1. 空天信息安全与可信计算教育部重点实验室，湖北武汉 430072
  2. 武汉大学国家网络安全学院，湖北武汉 430072
  3. 武汉大学电气与自动化学院，湖北武汉 430072
- 作者简介：
- 基金信息：
  
  The Science and Technology Project of State Grid Corporation of China “Research on Cooperative Situation Awareness and Active Defense Method of Cyber Physical Power System for Cyber Attack”(SGJSDK00KJJS1800315)
- DOI：10.11959/j.issn.1000-436x.2021107
  CLC： TM73
- Online First：2021-07，
  
  Published：25 July 2021
- 稿件说明：
移动端阅览
Jun’e LI, Qiuyu LU, Jian LIU, et al. Communication service priority in smart substation and its queue scheduling method[J]. Journal on Communications, 2021, 42(7): 25-40.
DOI：

Jun’e LI, Qiuyu LU, Jian LIU, et al. Communication service priority in smart substation and its queue scheduling method[J]. Journal on Communications, 2021, 42(7): 25-40. DOI： 10.11959/j.issn.1000-436x.2021107.

摘要

电网的发展对智能变电站提出了全站一网的要求。为满足多种通信业务的不同服务质量（QoS）需求，并保证网络拥塞时关键业务的实时性与可靠性，提出了一种智能变电站业务优先级及其队列调度方法。综合考虑业务时延要求、业务对电网运行控制的重要度和业务流量大小3种因素，对站内通信业务进行了优先级划分；针对新的业务优先级，结合严格优先级队列（SPQ）算法和赤字加权轮询（DWRR）算法的优点，设计了分层级赤字加权轮询（HDWRR）队列调度算法。仿真结果表明，所提方法对恶意流量具有较好的隔离能力，在网络拥塞时仍能保证智能变电站关键业务的实时可靠传输。

Abstract

The future development of power grid puts forward the requirement of unified network for all the communication services in smart substation.In order to meet the different quality of service (QoS) requirements of various communication services

as well as ensure the real-time and reliability of key services when the network congestion occurs

a priority scheme and its queue scheduling method for the smart substation was proposed.The priorities of the communication services in the smart substation were assigned considering the delay requirements

the importance to power grid operation control

and the traffic of the communication services.The queue scheduling algorithm of hierarchical deficit weighted round robin (HDWRR)

combining the advantages of strict priority queue (SPQ) algorithm and deficit weight round robin (DWRR) algorithm

was designed for the proposed priority scheme.The simulation results show that the proposed method has isolation ability for malicious traffic

and can ensure the real-time and reliable transmission of key services in smart substation once the network is congested.

关键词

Keywords

references

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